Category: Guide

  • How To Manage Root Account on Ubuntu 20.04

    How To Manage Root Account on Ubuntu 20.04

    On Linux, the root account is probably one of the most powerful accounts that there is. Considered the most privileged account on a Unix system, root can perform any tasks needed for system administration. Navigating a specific folder, killing any process or deleting a directory, root is so powerful that it has to be managed […]

  • How To Add Swap Space on Ubuntu 20.04

    How To Add Swap Space on Ubuntu 20.04

    This tutorial focuses on how to create swap space on Ubuntu 20.04 using a swap partition or a swap file. For system administrators, it is quite common for servers to run out of RAM. In some cases, you may have launched too many programs or some of the programs are already using too many resources. […]

  • How To Install Grafana on Ubuntu 20.04

    How To Install Grafana on Ubuntu 20.04

    This article focuses on installing the latest version of Grafana on an Ubuntu 20.04 server. Recently, Grafana Labs released a brand new version of Grafana : v7.0 This new version featured a whole set of different features : namely a new panel editor, a new explore function as well as new plugins and tutorials for […]

  • How To Add User To Sudoers On Ubuntu 20.04

    How To Add User To Sudoers On Ubuntu 20.04

    This tutorial focuses on adding sudoers rights to a user on Ubuntu 20.04 Focal Fossa. When managing an Ubuntu 20.04 server, it is actually quite important to know how to add sudoers to it. The sudo command is a very popular command on Linux. It allows unauthorized users to perform commands as another user, by […]

  • How To Install and Enable SSH Server on Ubuntu 20.04

    How To Install and Enable SSH Server on Ubuntu 20.04

    This tutorial focuses on setting up and configuring a SSH server on a Ubuntu 20.04 desktop environment. As a system administrator, you are probably working with SSH on a regular basis. Short for Secure Shell, SSH is a network protocol used in order to operate remote logins and commands on machines over local or remote […]

  • How To Install and Configure Ubuntu 20.04 with GNOME

    How To Install and Configure Ubuntu 20.04 with GNOME

    This tutorial provides step by step instructions on how to install Ubuntu 20.04 with a GNOME environment. As announced on the Ubuntu official website, Canonical has just released a brand new version of Ubuntu on the 23th of April 2020. Named Focal Fossa (or 20.04), this version of Ubuntu is a long term support version […]

  • Monitoring Disk I/O on Linux with the Node Exporter

    Monitoring Disk I/O on Linux with the Node Exporter

    Monitoring disk I/O on a Linux system is crucial for every system administrator. When performing basic system troubleshooting, you want to have a complete overview of every single metric on your system : CPU, memory but more importantly a great view over the disk I/O usage. In our previous tutorial, we built a complete Grafana […]

  • How To Change Root Password on Debian 10

    How To Change Root Password on Debian 10

    On Linux, the root account is a special user account on Linux that has access to all files, all commands and that can pretty much do anything on a Linux server. Most of the time, the root account is disabled, meaning that you cannot access it. For example, if you did not specify any password […]

  • How To Setup OpenLDAP Server on Debian 10

    How To Setup OpenLDAP Server on Debian 10

    As a system administrator, you are probably already familiar with the LDAP protocol. If you are working in a medium to large company, you can be sure that your company already owns a LDAP server, whether it is on Linux or Windows. Invented in the early 80s, the LDAP protocol (for Lightweight Directory Access Protocol) […]

  • How To Change Root Password on CentOS 8

    How To Change Root Password on CentOS 8

    The root account is a special user account on Linux that has access to all files, all commands and that can pretty much do anything on a Linux server. Most of the time, the root account is disabled, meaning that you cannot access it. However, you may want to access the root account sometimes to […]